US4836088A - Directional control valve and regeneration valve - Google Patents
Directional control valve and regeneration valve Download PDFInfo
- Publication number
- US4836088A US4836088A US06/767,764 US76776485A US4836088A US 4836088 A US4836088 A US 4836088A US 76776485 A US76776485 A US 76776485A US 4836088 A US4836088 A US 4836088A
- Authority
- US
- United States
- Prior art keywords
- piston
- fluid
- cylinder assembly
- valve
- flow path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
- F15B2011/0243—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits the regenerative circuit being activated or deactivated automatically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/3058—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
- F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
- F15B2211/31588—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and multiple output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/321—Directional control characterised by the type of actuation mechanically
- F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
- F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press
Definitions
- the invention relates to an improved circuitry for automatically effecting transition from regenerative mode to non-regenerative mode in a simple and efficient manner.
- first path means is provided which directly connects one outlet of the controlled valve to the base end of the piston/cylinder assembly in those positions of the valve in which such one outlet respectively provides pressurized fluid to the base end and connects it to drain.
- Second flow path means connects the other or second outlet of the controlled valve to the rod end of the piston/cylinder assembly for normally blocking fluid flow from the rod end of the assembly when the second outlet is connected to drain and for allowing flow from the second outlet to the rod end of the assembly when the second outlet is connected to pressure fluid.
- the operator When the cutter blade assembly has been opened sufficiently the operator returns the handle 18 to neutral position as in FIG. 1, manipulates the tractor or other equipment to place a tree in the grasp of the cutter blade assembly, and then manipulates the handle to the position of FIG. 3.
- the hydraulic condition of FIG. 3 will prevail until the cutter blade assembly closes upon the tree and sufficient pressure builds up due to resistance to movement of the piston 28, to automatically open the pressure responsive valve 46.
- the second fluid inlet port 38 is connected with drain, whereas the first fluid inlet port 36 is connected with pressurized fluid directly to pressurize the base end of the piston/cylinder assembly 24 and expel fluid from the rod end of the assembly.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/767,764 US4836088A (en) | 1985-08-21 | 1985-08-21 | Directional control valve and regeneration valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/767,764 US4836088A (en) | 1985-08-21 | 1985-08-21 | Directional control valve and regeneration valve |
Publications (1)
Publication Number | Publication Date |
---|---|
US4836088A true US4836088A (en) | 1989-06-06 |
Family
ID=25080517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/767,764 Expired - Fee Related US4836088A (en) | 1985-08-21 | 1985-08-21 | Directional control valve and regeneration valve |
Country Status (1)
Country | Link |
---|---|
US (1) | US4836088A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4913616A (en) * | 1989-02-23 | 1990-04-03 | J. I. Case Company | Hydraulic implement regeneration system |
BE1006417A3 (en) * | 1992-05-15 | 1994-08-23 | Caterpillar Inc | Fluid system recovery. |
US5791226A (en) * | 1996-05-25 | 1998-08-11 | Samsung Heavy Industries Co., Ltd. | Fluid regeneration device for construction vehicles |
BE1010985A3 (en) * | 1994-04-18 | 1999-03-02 | Caterpillar Inc | Hydraulic system including a valve mounting handset setting / locking and regeneration. |
EP0867567A3 (en) * | 1997-03-24 | 1999-03-10 | Oyodo Komatsu Co., Ltd. | Oil-pressure device |
US5938183A (en) * | 1998-08-04 | 1999-08-17 | Hydraulic Power Systems, Inc. | Braking assembly for use on a hydraulic winch |
US20060096645A1 (en) * | 2004-11-09 | 2006-05-11 | Morten Halvorsen | System for direct electrically operated hydraulic control valve |
US20070144164A1 (en) * | 2005-12-12 | 2007-06-28 | Linde Aktiengesellschaft | Control valve device for the control of a consumer |
US20080141854A1 (en) * | 2006-12-14 | 2008-06-19 | Edwards Mfg. Co. | Press having regeneration circuit |
US7827787B2 (en) | 2007-12-27 | 2010-11-09 | Deere & Company | Hydraulic system |
US9162297B2 (en) | 2009-11-30 | 2015-10-20 | Caterpillar Work Tools B.V. | Hydraulic device for hydraulic cylinders |
US20220194559A1 (en) * | 2020-12-22 | 2022-06-23 | Goodrich Actuation Systems Sas | Actuator overpressurising assembly |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3227050A (en) * | 1962-03-15 | 1966-01-04 | Caterpillar Tractor Co | Hydraulic circuit for actuation of an earthmoving scraper ejector |
US3512453A (en) * | 1968-05-22 | 1970-05-19 | Caterpillar Tractor Co | System for actuation of hydraulic motors on tractor powered implements |
US3759144A (en) * | 1970-08-17 | 1973-09-18 | Amada Co Ltd | Hydraulic actuating system for hydraulically operated bending machine |
US3851566A (en) * | 1973-01-13 | 1974-12-03 | Bosch Gmbh Robert | Apparatus for controlling a hydraulic-lift tail gate arrangement of a cargo-carrying vehicle |
US3854380A (en) * | 1972-06-23 | 1974-12-17 | Caterpillar Tractor Co | Three-way lever control for hydraulic control circuit |
US3935792A (en) * | 1973-02-26 | 1976-02-03 | Caterpillar Tractor Co. | Pilot pump bleed control for earthmoving scrapers |
US4128380A (en) * | 1975-10-02 | 1978-12-05 | Dr. Boy Kg | Fluid pressure actuated drive for the closing unit of an injection moulding machine |
US4216702A (en) * | 1978-05-01 | 1980-08-12 | Eaton Yale Ltd. | Pressure sensing regenerative hydraulic system |
US4421135A (en) * | 1979-02-12 | 1983-12-20 | Walter Kidde & Company, Inc. | Hydraulic selector valve having joy stick control |
US4638720A (en) * | 1980-12-01 | 1987-01-27 | Deere & Company | Electro-hydraulic control system |
US4702148A (en) * | 1985-08-28 | 1987-10-27 | Gewerkschaft Eisenhutte Westfalia Gmbh | Control of the actuation of hydraulic consumers |
-
1985
- 1985-08-21 US US06/767,764 patent/US4836088A/en not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3227050A (en) * | 1962-03-15 | 1966-01-04 | Caterpillar Tractor Co | Hydraulic circuit for actuation of an earthmoving scraper ejector |
US3512453A (en) * | 1968-05-22 | 1970-05-19 | Caterpillar Tractor Co | System for actuation of hydraulic motors on tractor powered implements |
US3759144A (en) * | 1970-08-17 | 1973-09-18 | Amada Co Ltd | Hydraulic actuating system for hydraulically operated bending machine |
US3854380A (en) * | 1972-06-23 | 1974-12-17 | Caterpillar Tractor Co | Three-way lever control for hydraulic control circuit |
US3851566A (en) * | 1973-01-13 | 1974-12-03 | Bosch Gmbh Robert | Apparatus for controlling a hydraulic-lift tail gate arrangement of a cargo-carrying vehicle |
US3935792A (en) * | 1973-02-26 | 1976-02-03 | Caterpillar Tractor Co. | Pilot pump bleed control for earthmoving scrapers |
US4128380A (en) * | 1975-10-02 | 1978-12-05 | Dr. Boy Kg | Fluid pressure actuated drive for the closing unit of an injection moulding machine |
US4216702A (en) * | 1978-05-01 | 1980-08-12 | Eaton Yale Ltd. | Pressure sensing regenerative hydraulic system |
US4421135A (en) * | 1979-02-12 | 1983-12-20 | Walter Kidde & Company, Inc. | Hydraulic selector valve having joy stick control |
US4638720A (en) * | 1980-12-01 | 1987-01-27 | Deere & Company | Electro-hydraulic control system |
US4702148A (en) * | 1985-08-28 | 1987-10-27 | Gewerkschaft Eisenhutte Westfalia Gmbh | Control of the actuation of hydraulic consumers |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4913616A (en) * | 1989-02-23 | 1990-04-03 | J. I. Case Company | Hydraulic implement regeneration system |
BE1006417A3 (en) * | 1992-05-15 | 1994-08-23 | Caterpillar Inc | Fluid system recovery. |
BE1010985A3 (en) * | 1994-04-18 | 1999-03-02 | Caterpillar Inc | Hydraulic system including a valve mounting handset setting / locking and regeneration. |
US5791226A (en) * | 1996-05-25 | 1998-08-11 | Samsung Heavy Industries Co., Ltd. | Fluid regeneration device for construction vehicles |
US5996465A (en) * | 1997-03-24 | 1999-12-07 | Oyodo Komatsu Co., Ltd. | Oil pressure device |
EP0867567A3 (en) * | 1997-03-24 | 1999-03-10 | Oyodo Komatsu Co., Ltd. | Oil-pressure device |
US5938183A (en) * | 1998-08-04 | 1999-08-17 | Hydraulic Power Systems, Inc. | Braking assembly for use on a hydraulic winch |
US20060096645A1 (en) * | 2004-11-09 | 2006-05-11 | Morten Halvorsen | System for direct electrically operated hydraulic control valve |
US20070144164A1 (en) * | 2005-12-12 | 2007-06-28 | Linde Aktiengesellschaft | Control valve device for the control of a consumer |
US7540231B2 (en) * | 2005-12-12 | 2009-06-02 | Linde Material Handling Gmbh | Control valve device for the control of a consumer |
US20080141854A1 (en) * | 2006-12-14 | 2008-06-19 | Edwards Mfg. Co. | Press having regeneration circuit |
US7827787B2 (en) | 2007-12-27 | 2010-11-09 | Deere & Company | Hydraulic system |
US9162297B2 (en) | 2009-11-30 | 2015-10-20 | Caterpillar Work Tools B.V. | Hydraulic device for hydraulic cylinders |
US20220194559A1 (en) * | 2020-12-22 | 2022-06-23 | Goodrich Actuation Systems Sas | Actuator overpressurising assembly |
US11821443B2 (en) * | 2020-12-22 | 2023-11-21 | Goodrich Actuation Systems Sas | Actuator overpressurising assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ROME INDUSTRIES, INC., P. O. BOX 48, CEDARTOWN, GE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SEABAUGH, DAVID T.;REEL/FRAME:004479/0103 Effective date: 19850821 |
|
AS | Assignment |
Owner name: ROME INDUSTRIES, INC., 600 FIRST SOURCE BANK CENTE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROME INDUSTRIES, INC.;REEL/FRAME:004920/0344 Effective date: 19880330 |
|
AS | Assignment |
Owner name: ROME INDUSTRIES, INC., A IN CORP., GEORGIA Free format text: TO CORRECT NAME OF ASSIGNOR IN ASSIGNMENT RECORDED JULY 25, 1988, REEL 4923 FRAME 1039;ASSIGNOR:ROME INDUSTRIES, INC., A GA CORP.;REEL/FRAME:005012/0181 Effective date: 19890103 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 19970611 |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |